Exhaust smell - BMW Forum - BimmerWerkz.com
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#1 (permalink) Old 03-10-2009, 12:27 PM
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Exhaust smell

i noticed that sometimes strange smell comes out of the exhaust and there is no smoke.and its not oil burning smell

can anyone tell me if he had such situation????
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#2 (permalink) Old 03-11-2009, 08:46 AM
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is it like rotten eggs?
check you catalytic converter.

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#3 (permalink) Old 03-12-2009, 06:17 AM
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Question

How i can chek my car's catalytic converter??
and when it needs change usually ???

my car has 67K km
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#4 (permalink) Old 03-12-2009, 09:17 AM
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LOS is an unknown quantity at this point
Usually there is rattling noise inside them, loose pieces of junk/metal. They usually last a long time, I still have the original on my 97 540 with 82k miles.
Use the search feature on this forum to read similar posts.

Good luck

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#5 (permalink) Old 03-13-2009, 06:14 AM
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They last longer than you think my neighbour has a 728i 1998 with 280,000miles on original cats.

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#6 (permalink) Old 03-14-2009, 04:21 AM
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Wink thnx

thnx friends u r really wonderfull people here
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#7 (permalink) Old 03-17-2009, 03:46 AM
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Dear friends

the smell is not like rotten egg, its like strange fuel smell and its comes with light white smoke
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#8 (permalink) Old 03-17-2009, 01:04 PM
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Originally Posted by warrior spirit View Post
Dear friends

the smell is not like rotten egg, its like strange fuel smell and its comes with light white smoke
Does it smell kinda "sweet"? If it does, then it's coolant....not good if that's the case. White smoke also suggests moisture (coolant) presence in combustion.

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#9 (permalink) Old 03-17-2009, 01:32 PM
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thnx Cosmo

but if its the coolant,,, there must b a leak of water. is it true?
water level is steady for long time,i dont have problem with it
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#10 (permalink) Old 03-17-2009, 04:07 PM
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my car smells like it runs extra rich as well... I always though it was becuase my Cat wasn't existant.. are you throwing any check engine lights ?



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#11 (permalink) Old 03-17-2009, 05:42 PM
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no i dont have any light ...
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